Why is Jack and Queen held over Ace in DDB?

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Ace Roller
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Why is Jack and Queen held over Ace in DDB?

Post by Ace Roller »

Just as the question says. In 9/6 DDB, the jack and queen is the prefered choice of the trainer over the ace even if the suites are different. Why?

Example: Jack of spades, Queen of diamond, Ace of Hearts, 2 of clover, and 5 of clover…Trailer will say to hold the jack and queen. Wtf?

Tedlark
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Post by Tedlark »

WTF is right. On so many levels.

New2vp
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Joined: Mon Sep 11, 2006 4:02 am

Post by New2vp »

Double Double Bonus does give you an incentive to try for the quad aces prize with or without the kicker, but if you start with only a sole ace, drawing 4 cards to quad aces has odds of more than 4000 to 1. If you would like to "roll with the ace" and still have the trainer's choice for a hold, you might want to try instead one of Ted's favorites, Triple Double Bonus. You would still have the same chance to get quad aces with a kicker, but the extra value makes it more worth the gamble.

In situations where the choice is between unsuited QJ and an ace in DDB, QJ has a higher expectation about 5 out of 6 times, but it is a close call. If the other two cards dealt are a 7 and a 6 with neither suited with the ace, both the QJ hold and the Ace hold are at their maximum expected value for such hands (2.29 coins per hand vs 2.27). QJ's advantage in getting the mundane paying pair hands and straights is enough to offset the Ace's advantage with the larger hands.

If one of the other cards is an 8, that reduces the QJ value enough (by allowing fewer straights) to make it a worse choice than the A ... except if the value of the ace is also reduced by either one of the other cards being a 2, 3, 4, or 5 (allowing fewer straights) OR either or both of the other cards being suited with the ace (allowing fewer flushes or straight flush possibilities).

If one of the other cards is a 9 that reduces the QJ value even more than the 8 does, so the Ace will then be better unless one or both of the other cards are suited with the ace.

If you don't want to think that hard, always hold the QJ ... or if that still really bugs you, always hold only the ace and plan for a lower expected value but every once in a blue moon you might get the premium hand that you wish for.

Good luck.

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